Asian Pacific Journal of Cancer Prevention

  • 제15권19호
  • /
  • Pages.8441-8445
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  • 2014
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  • 1513-7368(pISSN)
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  • 2476-762X(eISSN)
아시아태평양암예방학회 (Asian Pacific Journal of Cancer Prevention)
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Expression of DNA Methylation Marker of Paired-Like Homeodomain Transcription Factor 2 and Growth Receptors in Invasive Ductal Carcinoma of the Breast

  • Rahman, Wan Faiziah Wan Abdul (Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus) ;
  • Fauzi, Mohd Hashairi (Department of Emergency Medicine, School of Medical Sciences, Universiti Sains Malaysia, Health Campus) ;
  • Jaafar, Hasnan (Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus)
  • 발행 : 2014.10.23
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초록

Background: Paired-like homeodomain transcription factor 2 (PITX2) is another new marker in breast carcinoma since hypermethylation at P2 promoter of this gene was noted to be associated with poor prognosis. We investigated the expression of PITX2 protein using immunohistochemistry in invasive ductal carcinoma and its association with the established growth receptors such as estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth receptor 2 (HER2). Methods: We conducted a cross sectional study using 100 samples of archived formalin-fixed paraffin embedded tissue blocks of invasive ductal carcinoma and stained them with immunohistochemistry for PITX2, ER, PR and HER2. All HER2 with scoring of 2+ were confirmed with chromogenic in-situ hybridization (CISH). Results: PITX2 protein was expressed in 53% of invasive ductal carcinoma and lack of PITX2 expression in 47%. Univariate analysis revealed a significant association between PITX2 expression with PR (p=0.001), ER (p=0.006), gland formation (p=0.044) and marginal association with molecular subtypes of breast carcinoma (p=0.051). Combined ER and PR expression with PITX2 was also significantly associated (p=0.003) especially in double positive cases. Multivariate analysis showed the most significant association between PITX2 and PR (RR 4.105, 95% CI 1.765-9.547, p=0.001). Conclusion: PITX2 is another potential prognostic marker in breast carcinoma adding significant information to established prognostic factors of ER and PR. The expression of PITX2 together with PR may carry a very good prognosis.

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참고문헌

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피인용 문헌

  1. Methylation in promoter regions of PITX2 and RASSF1A genes in association with clinicopathological features in breast cancer patients vol.37, pp.12, 2016, https://doi.org/10.1007/s13277-016-5324-3